SPL - Police arrest two in Lennon bomb probe
Strathclyde police confirmed that a 41-year-old and a 43-year-old were taken into custody after dawn raids in the Ayrshire town of Kilwinning, where one package was discovered in a post box.
The men have been charged under the explosive substances act.
In a separate enquiry, police are investigating a package received at Celtic Park on Thursday morning which is believed to have been addressed to Lennon and contained a bullet.
A man also appeared in court on Thursday charged with assault over the attack on the Celtic manager during the Glasgow club's match against Hearts on Wednesday.